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https://www.readbyqxmd.com/read/27904783/circulating-mirna-profile-in-esophageal-adenocarcinoma
#1
Keqiang Zhang, Xiwei Wu, Jinhui Wang, Joshua Lopez, Weiying Zhou, Lu Yang, Shizhen Emily Wang, Dan J Raz, Jae Y Kim
Esophageal cancer is one of the deadliest cancers worldwide. It typically has a poor overall prognosis because of diagnosis in advanced stages. Sensitive biomarkers for the early detection of esophageal cancer are urgently needed to reduce the high mortality of this disease. Circulating microRNAs (miRNAs) are emerging as a novel non-invasive biomarker for cancer diagnosis due to its high stability and specificity. In this study, we profiled circulating miRNAs in serum of patients with esophageal adenocarcinoma (EAC) using the Solexa sequencing analysis...
2016: American Journal of Cancer Research
https://www.readbyqxmd.com/read/27898025/identification-and-characterization-of-micrornas-in-the-liver-of-blunt-snout-bream-megalobrama-amblycephala-infected-by-aeromonas-hydrophila
#2
Lei Cui, Hongtao Hu, Wei Wei, Weimin Wang, Hong Liu
MicroRNAs (miRNAs) are small RNA molecules that play key roles in regulation of various biological processes. In order to better understand the biological significance of miRNAs in the context of Aeromonas hydrophila infection in Megalobrama amblycephala, small RNA libraries obtained from fish liver at 0 (non-infection), 4, and 24 h post infection (poi) were sequenced using Illumina deep sequencing technology. A total of 11,244,207, 9,212,958, and 7,939,157 clean reads were obtained from these three RNA libraries, respectively...
November 25, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/27885434/evaluation-of-mir-21-and-mir-375-as-prognostic-biomarkers-in-oesophageal-cancer-in-high-risk-areas-in-china
#3
Yutong He, Jing Jin, LiQun Wang, Yuejiao Hu, Di Liang, Huichai Yang, Yueping Liu, Baoen Shan
MicroRNAs have been associated with prognosis in oesophageal cancer (EC), suggesting that miRNAs could play a role in guiding treatment decisions. The aim of this study was to evaluate the prognostic potential of miRNAs found to be associated with zinc deficiency in a geographical area with a high incidence of EC. miRNAs found to be associated with zinc deficiency were isolated from EC cell lines cultured with various Zn levels. The expression levels of the miRNAs were quantified using qRT-PCR. The potential prognostic value of the selected miRNAs was assessed in a cohort study of 88 patients from an area in China with a high incidence of EC...
November 24, 2016: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/27884727/impact-of-17beta-estradiol-and-progesterone-on-inflammatory-and-apoptotic-microrna-expression-after-ischemia-in-a-rat-model
#4
Rebecca Herzog, Adib Zendedel, Leoni Lammerding, Cordian Beyer, Alexander Slowik
17β-estradiol (E2) and progesterone (P) are neuroprotective factors in the brain preventing neuronal death under different injury paradigms. In previous studies, we demonstrated that both steroids dampen neuronal damage, improve local energy metabolism and attenuate pro-inflammatory responses. MicroRNAs (miRNAs) are small regulators of distinct target genes on the RNA level. Their expression patterns are misbalanced in several neurological disorders. To explore the regulatory mechanisms of steroid hormones on selected miRNAs and their validated targets in ischemia, we used the transient middle cerebral artery occlusion (tMCAO) model...
November 22, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27880727/gold-nanoparticles-delivered-mir-375-for-treatment-of-hepatocellular-carcinoma
#5
Hui-Ying Xue, Yong Liu, Jia-Zhi Liao, Ju-Sheng Lin, Bin Li, Wei-Gang Yuan, Robert J Lee, Lei Li, Chuan-Rui Xu, Xing-Xing He
MiR-375 is a tumor suppressor miRNA that is downregulated in hepatocellular carcinoma (HCC). However, due to the lack of effective delivery strategies, miR-375 replacement as a therapy for HCC has not been investigated. In the present study, we have developed a straightforward strategy to deliver miR-375 into HCC cells by assembling miR-375 mimics on the surface of AuNPs and forming AuNP-miR-375 nanoparticles. AuNP-miR-375 exhibits high cellular uptake and preserves miR-375's activities to suppress cellular proliferation, migration/invasion, and colony formation, and to induce apoptosis in HCC cells...
November 17, 2016: Oncotarget
https://www.readbyqxmd.com/read/27878285/trichostatin-a-increases-radiosensitization-of-tongue-squamous-cell-carcinoma-via-mir%C3%A2-375
#6
Lingfei Jia, Shan Zhang, Yiping Huang, Yunfei Zheng, Yehua Gan
Trichostatin A (TSA), a histone deacetylase inhibitor, is used as an anti-carcinogenic and radiosensitizing agent in various cancers. However, the role and mechanism underlying its radiosensitization of tongue squamous cell carcinoma (TSCC) remains unclear. Thus, in this study we aimed to confirm the promotion of miR‑375 expression by TSA, and to investigate the effects of TSA and miR‑375 in the radiosensitivity of TSCC cells. The results showed that TSA had significant radiosensitizing effects on TSCC cells and miR‑375 overexpression had effects similar to TSA in sensitizing these cells to radiotherapy...
November 18, 2016: Oncology Reports
https://www.readbyqxmd.com/read/27866884/microrna-biomarkers-of-pancreatic-injury-in-a-canine-model
#7
Rodney Rouse, Barry Rosenzweig, Katie Shea, Alan Knapton, Sharron Stewart, Lin Xu, Ashok Chockalingam, Leah Zadrozny, Karol Thompson
Pancreas-enriched microRNAs have been experimentally investigated in rodents as candidate serum biomarkers of pancreatic injury with several different acute pancreatic injury models. In the present study, temporal and magnitude responses of exocrine pancreas-enriched miR-216a, miR-216b, and miR-217 and endocrine-enriched miR-375 and miR-148a were measured by droplet digital PCR in serum in a caerulein model of pancreatic injury in the dog. All 5 microRNAs followed a similar time course that mirrored the responses of the conventional serum pancreatic injury biomarkers, amylase and lipase...
November 17, 2016: Experimental and Toxicologic Pathology: Official Journal of the Gesellschaft Für Toxikologische Pathologie
https://www.readbyqxmd.com/read/27866223/circulating-microrna-levels-predict-residual-beta-cell-function-and-glycaemic-control-in-children-with-type-1-diabetes-mellitus
#8
Nasim Samandari, Aashiq H Mirza, Lotte B Nielsen, Simranjeet Kaur, Philip Hougaard, Siri Fredheim, Henrik B Mortensen, Flemming Pociot
AIMS/HYPOTHESIS: We aimed to identify circulating microRNA (miRNA) that predicts clinical progression in a cohort of 123 children with new-onset type 1 diabetes mellitus. METHODS: Plasma samples were prospectively obtained at 1, 3, 6, 12 and 60 months after diagnosis from a subset of 40 children from the Danish Remission Phase Cohort, and profiled for miRNAs. At the same time points, meal-stimulated C-peptide and HbA1c levels were measured and insulin-dose adjusted HbA1c (IDAA1c) calculated...
November 19, 2016: Diabetologia
https://www.readbyqxmd.com/read/27862697/zfp36l2-promotes-cancer-cell-aggressiveness-and-is-regulated-by-antitumor-microrna-375-in-pancreatic-ductal-adenocarcinoma
#9
Keiichi Yonemori, Naohiko Seki, Hiroshi Kurahara, Yusaku Osako, Tetsuya Idichi, Takayuki Arai, Keiichi Koshizuka, Yoshiaki Kita, Kosei Maemura, Shoji Natsugoe
Due to its aggressive nature, pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal and hard-to-treat malignancies. Recently developed targeted molecular strategies have contributed to remarkable improvements in the treatment of several cancers. However, such therapies have not been applied to PDAC. Therefore, new treatment options are needed for PDAC based on current genomic approaches. Expression of microRNA-375 (miR-375) was significantly reduced in miRNA expression signatures of several types of cancers, including PDAC...
November 14, 2016: Cancer Science
https://www.readbyqxmd.com/read/27856419/neuropeptide-y-npy-promotes-inflammation-induced-tumorigenesis-by-enhancing-epithelial-cell-proliferation
#10
Sabrina Jeppsson, Shanthi Srinivasan, Bindu Chandrasekharan
We have demonstrated that neuropeptide Y (NPY), abundantly produced by enteric neurons, is an important regulator of intestinal inflammation. However the role of NPY in the progression of chronic inflammation to tumorigenesis is unknown. We investigated whether NPY could modulate epithelial cell proliferation and apoptosis, and thus regulate tumorigenesis. Repeated cycles of dextran sodium sulfate (DSSn) was used to model inflammation-induced tumorigenesis in wild-type (WT) and NPY knockout (NPY(-/-)) mice...
November 17, 2016: American Journal of Physiology. Gastrointestinal and Liver Physiology
https://www.readbyqxmd.com/read/27844328/molecular-profiling-of-thymoma-and-thymic-carcinoma-genetic-differences-and-potential-novel-therapeutic-targets
#11
Franz Enkner, Bettina Pichlhöfer, Alexandru Teodor Zaharie, Milica Krunic, Tina Maria Holper, Stefan Janik, Bernhard Moser, Karin Schlangen, Barbara Neudert, Karin Walter, Brigitte Migschitz, Leonhard Müllauer
Thymoma and thymic carcinoma are thymic epithelial tumors (TETs). We performed a molecular profiling to investigate the pathogenesis of TETs and identify novel targets for therapy. We analyzed 37 thymomas (18 type A, 19 type B3) and 35 thymic carcinomas. The sequencing of 50 genes detected nonsynonymous mutations in 16 carcinomas affecting ALK, ATM, CDKN2A, ERBB4, FGFR3, KIT, NRAS and TP53. Only two B3 thymomas had a mutation in noncoding regions of the SMARCB1 and STK11 gene respectively. Three type A thymomas harbored a nonsynonymous HRAS mutation...
November 14, 2016: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/27832783/mir-375-induces-docetaxel-resistance-in-prostate-cancer-by-targeting-sec23a-and-yap1
#12
Yuan Wang, Rachel Lieberman, Jing Pan, Qi Zhang, Meijun Du, Peng Zhang, Marja Nevalainen, Manish Kohli, Niraj K Shenoy, Hui Meng, Ming You, Liang Wang
BACKGROUND: Treatment options for metastatic castrate-resistant prostate cancer (mCRPC) are limited and typically are centered on docetaxel-based chemotherapy. We previously reported that elevated miR-375 levels were significantly associated with poor overall survival of mCRPC patients. In this study, we evaluated if miR-375 induced chemo-resistance to docetaxel through regulating target genes associated with drug resistance. METHODS: We first compared miR-375 expression level between prostate cancer tissues and normal prostate tissues using data from The Cancer Genome Atlas (TCGA)...
November 10, 2016: Molecular Cancer
https://www.readbyqxmd.com/read/27812930/the-e6-tap63%C3%AE-dicer-feedback-loop-involves-in-mir-375-downregulation-and-epithelial-to-mesenchymal-transition-in-hr-hpv-cervical-cancer-cells
#13
Hongzhi Lu, Zhengqin Qi, Lin Lin, Li Ma, Li Li, Hong Zhang, Li Feng, Ying Su
MiR-375 has been recognized as an important tumor suppressor and is usually downregulated in cervical cancer. However, how it is downregulated in cervical cancer is not clear. By using cancerous and normal cervical tissues, we observed that miR-375 and Dicer are both downregulated and were positively correlated. Overexpression of miR-375 resulted in decreased viral E6 and increased Dicer expression in both Hela and SiHa cells. Previous studies suggest that E6 can induce an accelerated degradation of TAp63β, while TAp63 can bind to and transactivate the Dicer promoter, exerting a direct regulation on transcription of Dicer...
November 3, 2016: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/27804997/a-presenilin-notch1-pathway-regulated-by-mir-375-mir-30a-and-mir-34a-mediates-glucotoxicity-induced-pancreatic-beta-cell-apoptosis
#14
Yating Li, Tao Zhang, Yuncai Zhou, Yi Sun, Yue Cao, Xiaoai Chang, Yunxia Zhu, Xiao Han
The presenilin-mediated Notch1 cleavage pathway plays a critical role in controlling pancreatic beta cell fate and survival. The aim of the present study was to investigate the role of Notch1 activation in glucotoxicity-induced beta cell impairment and the contributions of miR-375, miR-30a, and miR-34a to this pathway. We found that the protein levels of presenilins (PSEN1 and PSEN2), and NOTCH1 were decreased in INS-1 cells after treatment with increased concentrations of glucose, whereas no significant alteration of mRNA level of Notch1 was observed...
November 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27800139/the-effect-of-microrna-375-overexpression-an-inhibitor-of-helicobacter-pylori-induced-carcinogenesis-on-lncrna-sox2ot
#15
Mohammad Shafiee, Seyed Ahmad Aleyasin, Seyed Javad Mowla, Mohammad Vasei, Seyed Amir Yazdanparast
BACKGROUND: Helicobacter pylori is a major human pathogenic bacterium in gastric mucosa. Although the association between gastric cancer and H. pylori has been well-established, the molecular mechanisms underlying H. pylori-induced carcinogenesis are still under investigation. MicroRNAs (miRNAs) are small noncoding RNAs that modulate gene expression at the posttranscriptional level. Recently, studies have revealed that miRNAs are involved in immune response and host cell response to bacteria...
September 2016: Jundishapur Journal of Microbiology
https://www.readbyqxmd.com/read/27779648/regulation-of-mmp13-by-antitumor-microrna-375-markedly-inhibits-cancer-cell-migration-and-invasion-in-esophageal-squamous-cell-carcinoma
#16
Yusaku Osako, Naohiko Seki, Yoshiaki Kita, Keiichi Yonemori, Keiichi Koshizuka, Akira Kurozumi, Itaru Omoto, Ken Sasaki, Yasuto Uchikado, Hiroshi Kurahara, Kosei Maemura, Shoji Natsugoe
Esophageal squamous cell carcinoma (ESCC) is one of the most aggressive malignancies. Recently developed molecular targeted therapies are not available for patients with ESCC. After curative surgical resection, patients frequently suffer distant metastasis and recurrence. Exploration of novel ESCC metastatic pathways may lead to the development of new treatment protocols for this disease. Accordingly, we have sequentially identified microRNA (miRNA)-mediated metastatic pathways in several cancers. Our past studies of miRNA expression signatures have shown that microRNA-375 (miR-375) is frequently reduced in several types of cancers, including ESCC...
October 21, 2016: International Journal of Oncology
https://www.readbyqxmd.com/read/27777110/altered-expression-of-mirnas-in-the-uterus-from-a-letrozole-induced-rat-pcos-model
#17
Chunjin Li, Lu Chen, Yun Zhao, Shuxiong Chen, Lulu Fu, Yanwen Jiang, Shan Gao, Zhuo Liu, Fengge Wang, Xiaoling Zhu, Jiahui Rao, Jing Zhang, Xu Zhou
Polycystic ovary syndrome (PCOS) causes female subfertility with ovarian disorders and may be associated with increased rate of early-pregnancy failure. Rat PCOS models were established using letrozole to understand the uterine pathogenesis of PCOS. The differential expression of microRNAs (miRNAs) was observed in rat uterus with PCOS. After estrous cycles were disrupted, significantly abnormal ovarian morphology and hormone level were observed in rats with PCOS. A total of 148 miRNAs differentially expressed were identified in the uterus from the letrozole-induced rat model compared with the control...
October 21, 2016: Gene
https://www.readbyqxmd.com/read/27756810/mir-375-mediates-crh-signaling-pathway-in-inhibiting-e2-synthesis-in-porcine-ovary
#18
Chulin Yu, Meiling Li, Yue Wang, Ying Liu, Chengzhi Yan, Jirong Pan, Jiali Liu, Sheng Cui
The corticotropin-releasing hormone (CRH) signaling system is involved in numbers of stress-related physiological and pathological responses,including its inhibiting effects on estradiol (E2) synthesis and follicular development in the ovary. In addition, there are reports that microRNAs (miRNAs) can control the function of animal reproductive system. The aim of present study was to investigate the functions of miR-375 and the relationship between miR-375 and CRH signaling molecules in the porcine ovary. First, our common PCR results show that miR-375 and the CRH receptor 1 (CRHR1) are expressed in porcine ovary, whereas CRH receptor 2 (CRHR2) is not detected...
October 18, 2016: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/27751843/extracellular-vesicles-as-a-source-for-non-invasive-biomarkers-in-bladder-cancer-progression
#19
Zoraida Andreu, Renan Otta Oshiro, Alberto Redruello, Soraya López-Martín, Cristina Gutiérrez-Vázquez, Esperanza Morato, Ana Isabel Marina, Carlos Olivier Gómez, María Yáñez-Mó
Bladder cancer is the second most frequent malignancy of the urinary tract after prostate cancer. Current diagnostic techniques, such as cystoscopy and biopsies are highly invasive and accompanied of undesirable side effects. Moreover, there are no suitable biomarkers for relapse or progression prognosis. We analysed whether the specific composition of microRNAs (miRNAs) and proteins of extracellular vesicles (EVs) that urothelial tumor cells of bladder mucosa release into the urine, could reflect their pathologic condition...
October 14, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27748833/the-effect-of-dichloroacetate-in-canine-prostate-adenocarcinomas-and-transitional-cell-carcinomas-in-vitro
#20
Tatjana Harting, Mandy Stubbendorff, Saskia Willenbrock, Siegfried Wagner, Patrik Schadzek, Anaclet Ngezahayo, Hugo Murua Escobar, Ingo Nolte
The Warburg effect describes the ability of cancer cells to produce energy via aerobic glycolysis instead of oxidative phosphorylation of pyruvate. This deviation in mitochondrial metabolism inhibits apoptosis, allowing increased proliferation under conditions of reduced oxygen levels. Dichloroacetate (DCA) was successfully used in several human cancer cell lines to reactivate oxidative phosphorylation in mitochondria. The aim of this study was the characterization and response of canine cancer cell lines after DCA exposure...
October 5, 2016: International Journal of Oncology
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